Home / 8,627.60-11,909.16-5,227.28

Finding the Fourth Proportional to 8,627.60, 11,909.16 and 5,227.28

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Solution

The fourth proportional to 8,627.60, 11,909.16 and 5,227.28 is: 7,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.60 : 11,909.16 = 5,227.28 : x
  2. Step 2: Convert to fraction form
    8,627.60/11,909.16 = 5,227.28/x
  3. Step 3: Cross multiply
    8,627.60x = 11,909.16 × 5,227.28
  4. Step 4: Simplify right side
    8,627.60x = 62,252,513.88
  5. Step 5: Solve for x
    x = 62,252,513.88/8,627.60
  6. Step 6: Final answer
    x = 7,215.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.